Answer: A. Suez Canal.
The Suez Canal connects both seas, and it is a common travel way for ships.
Answer: contain the spread of communism.
Explanation:
The Truman Doctrine was to established that the United States would provide political, military and economic assistance to all democratic nations under threat from external or internal authoritarian forces. The goal for the Marshall Plan was to aid in the economic recovery of nations after World War II and to reduce the influence of Communist parties within them.
Wanted to prevent future threats from Germany => Joseph Stalin
Wanted free elections in Eastern Europe => Winston Churchill
Wanted Soviet help against Japan => Franklin D. Roosevelt
Answer: Southern.
Explanation: The southern states seceded from the union to form the Confederacy.
The Vietnam war proved that the state of global communism was strong in winning battles with regards to alliances. It showed that if communist countries coordinated with each other, they would be a very powerful and fearful bunch of countries.